He-Man and the Masters of the Universe (1983)

S1E41 The Search

Zodac arrives at Castle Grayskull to warn The Sorceress that Eternia faces a grave threat: Skeletor is on the hunt for the Starseed, an incredibly potent fragment of cosmic matter from the big bang that can manifest the holder's desires into reality. The Sorceress quickly calls upon He-Man, and with Battle Cat and Orko by his side, they embark on a frantic mission to secure the Starseed before it falls into Skeletor's hands. However, with such immense power at stake, can even He-Man withstand the temptation to misuse it?